ADE WS 1908 Mode D'emploi page 46

Measurements
Temperature and humidity measurements are
automatically updated once a minute.
Measurement of TVOC and CO
started manually.
− To start the measurement process, press
and hold down the sensor field
approx. 3 seconds. This triggers a five-minute
countdown and air data analysis.
Pay attention to the following:
‚ Frequent TVOC and CO
consume much battery power. If the
measurement display shows
to change the batteries or connect the
device to a power supply using USB
connection (see also "Changing batteries").
‚ Operation of the device via USB connection
increases measurement accuracy.
46
values must be
2
for
measurements
2
, be sure